wannacry | 9225232799b946c0b18e7270bb29a265e1985d6192c04114cec51fa7b34f11ff

General

Target

0acfa714e15f0b2823c4c177117b2144.dll
Size

5.0MB
MD5

0acfa714e15f0b2823c4c177117b2144
SHA1

7cc86654f29657debc48da510216e52d1e906a8f
SHA256

9225232799b946c0b18e7270bb29a265e1985d6192c04114cec51fa7b34f11ff
SHA512

f89d7a27c85f89be251aeda6650687de9fc76412affed5647f0647832d65990e7e40012838e2ccb6beada161f44a43aafbdde713678809d5b31f8b588dbda61b

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (1253) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Scanning
T1046
Executes dropped EXE 3 IoCs

Processes:

mssecsvc.exemssecsvc.exetasksche.exe

pid process

1148 mssecsvc.exe
1328 mssecsvc.exe
1924 tasksche.exe

pid	process
1148	mssecsvc.exe
1328	mssecsvc.exe
1924	tasksche.exe

Drops file in System32 directory 1 IoCs

Processes:

mssecsvc.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	mssecsvc.exe

Drops file in Windows directory 2 IoCs

Processes:

rundll32.exemssecsvc.exe

description ioc process

File created C:\WINDOWS\mssecsvc.exe rundll32.exe
File created C:\WINDOWS\tasksche.exe mssecsvc.exe

description	ioc	process
File created	C:\WINDOWS\mssecsvc.exe	rundll32.exe
File created	C:\WINDOWS\tasksche.exe	mssecsvc.exe

Modifies data under HKEY_USERS 24 IoCs

Processes:

mssecsvc.exe

description	ioc	process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00b9000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-be-6e-b9-73-90\WpadDecisionTime = c066c4d4d89bd801	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DDD376C1-A934-4862-A477-420673A0EB55}	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DDD376C1-A934-4862-A477-420673A0EB55}\WpadDecisionReason = "1"	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DDD376C1-A934-4862-A477-420673A0EB55}\WpadNetworkName = "Network 3"	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DDD376C1-A934-4862-A477-420673A0EB55}\4a-be-6e-b9-73-90	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-be-6e-b9-73-90\WpadDecisionReason = "1"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-be-6e-b9-73-90\WpadDecision = "0"	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DDD376C1-A934-4862-A477-420673A0EB55}\WpadDecisionTime = c066c4d4d89bd801	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DDD376C1-A934-4862-A477-420673A0EB55}\WpadDecision = "0"	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-be-6e-b9-73-90	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	mssecsvc.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 892 wrote to memory of 1816	892	rundll32.exe	rundll32.exe
PID 892 wrote to memory of 1816	892	rundll32.exe	rundll32.exe
PID 892 wrote to memory of 1816	892	rundll32.exe	rundll32.exe
PID 892 wrote to memory of 1816	892	rundll32.exe	rundll32.exe
PID 892 wrote to memory of 1816	892	rundll32.exe	rundll32.exe
PID 892 wrote to memory of 1816	892	rundll32.exe	rundll32.exe
PID 892 wrote to memory of 1816	892	rundll32.exe	rundll32.exe
PID 1816 wrote to memory of 1148	1816	rundll32.exe	mssecsvc.exe
PID 1816 wrote to memory of 1148	1816	rundll32.exe	mssecsvc.exe
PID 1816 wrote to memory of 1148	1816	rundll32.exe	mssecsvc.exe
PID 1816 wrote to memory of 1148	1816	rundll32.exe	mssecsvc.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\0acfa714e15f0b2823c4c177117b2144.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:892

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\0acfa714e15f0b2823c4c177117b2144.dll,#1
2⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1816

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe
3⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:1148

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
4⤵
- Executes dropped EXE
PID:1924

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe -m security
1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:1328

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Scanning

1

T1046

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\WINDOWS\mssecsvc.exe
Filesize
3.6MB

MD5
851656d3b1661d7927cdac4277b1a721

SHA1
a4e5d6c281cc7fd859bfd25904e83bd959a0378e

SHA256
b0c3943658196e0043693f70ba7484efe41f01171494ca6f0ad790d6bab1ae96

SHA512
c4d67c9886c7ac90357072453029f06313aa971900ea34a31aac020961929dec35da5f6f7f0aeb849d410e2b378333e3687c5045681f351c3688a0a2439a46a0

Download Submit
C:\Windows\mssecsvc.exe
Filesize
3.6MB

MD5
851656d3b1661d7927cdac4277b1a721

SHA1
a4e5d6c281cc7fd859bfd25904e83bd959a0378e

SHA256
b0c3943658196e0043693f70ba7484efe41f01171494ca6f0ad790d6bab1ae96

SHA512
c4d67c9886c7ac90357072453029f06313aa971900ea34a31aac020961929dec35da5f6f7f0aeb849d410e2b378333e3687c5045681f351c3688a0a2439a46a0

Download Submit
C:\Windows\mssecsvc.exe
Filesize
3.6MB

MD5
851656d3b1661d7927cdac4277b1a721

SHA1
a4e5d6c281cc7fd859bfd25904e83bd959a0378e

SHA256
b0c3943658196e0043693f70ba7484efe41f01171494ca6f0ad790d6bab1ae96

SHA512
c4d67c9886c7ac90357072453029f06313aa971900ea34a31aac020961929dec35da5f6f7f0aeb849d410e2b378333e3687c5045681f351c3688a0a2439a46a0

Download Submit
C:\Windows\tasksche.exe
Filesize
3.4MB

MD5
17440b52cad5b68af23c85eeccb70489

SHA1
97b36c4d29f37d9a73b9e6dec83ec181f88bc80f

SHA256
4e5f194bdfcf325c80244cdb2b5b00fcbafbe812ce6bc335d95b3d9b4f6e66a7

SHA512
d8418b93656c5b86e7400e40393864b8acf690b6febceb584fd0b9943520957a152ecad08160321b366cd34935ccb8d304638f630122b32b946c2772198c4442

Download Submit
memory/1148-56-0x0000000000000000-mapping.dmp

Download
memory/1816-54-0x0000000000000000-mapping.dmp

Download
memory/1816-55-0x0000000075831000-0x0000000075833000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads